ASTM A420 WPL6 Pipe Fittings
Standard:ASME B16.9, ASME B16.25, MSS SP-75 DIN2615 JISB2311 JISB2312 JISB2313
Size:1/2" -48"
Thickness: Sch10~SCH XXS(1mm~50mm)
Material:ASTM A420 WPL6
Usage: Use for petroleum, chemical, nuclear, power, ship-building, papermaking, food, water, gas, medicine, construction industry etc.
Surface treament: Black painting, anti-rust varnish, anti-rust oil, hot galvanized
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1. Chemical Composition of ASTM A420 WPL6
| C |
Mn |
P |
S |
Si |
Ni |
Cr |
Mo |
Cu |
Cb |
V |
| ≤0.30 |
0.50~1.05 |
≤0.035 |
≤0.040 |
0.15~0.40 |
≤0.40 |
≤0.30 |
≤0.12 |
≤0.40 |
≤0.02 |
≤0.08 |
*All values are in % unit.
2. Mechanical Properties of ASTM A420 WPL6
| Tensile Strength, min. |
Yield Strength, min. |
Elongation (2 in.), min. |
| ksi |
MPa |
ksi |
MPa |
Longitudinal, % |
Transverse, % |
| 60~95 |
415~655 |
35 |
240 |
30 |
16.5 |
*All properties shall be measured at room temperature.
3. Charpy Impact Requirements
| Size of Specimen |
A* |
B* |
| mm |
ft·lbf |
J |
ft·lbf |
J |
| 10 by 10.0 |
13 |
17.6 |
10 |
13.6 |
| 10 by 7.5 |
10 |
13.6 |
8 |
10.8 |
| 10 by 5.0 |
7 |
9.5 |
5 |
7.0 |
| 10 by 2.5 |
4 |
5.4 |
3 |
4.1 |
*A - Charpy V-Notch Impact Value Required for Acceptance (Average of Three Specimens).
*B - Minimum Charpy V-Notch Impact Value Without Requiring Retest (One Specimen Only of a Set).
*The impact test temperature shall be -50°F[-45°C] for ASTM A420 Gr. WPL6.
4. Maximum Allowable Stress at Elevated Temperatures
| Temp. |
-20~100 |
150 |
200 |
300 |
400 |
500 |
| *MAS |
17.1 |
17.1 |
17.1 |
17.1 |
17.1 |
17.1 |
| Temp. |
600 |
650 |
700 |
750 |
800 |
850 |
| *MAS |
17.1 |
17.1 |
15.6 |
13.0 |
10.8 |
8.7 |
*Temp.: metal temperature, °F, not exceeding. *MAS: maximum allowable stress, ksi.
5. Design Stress Intensity at Elevated Temperatures
| *Temp. |
-20~100 |
150 |
200 |
300 |
400 |
500 |
600 |
650 |
700 |
| *DSI |
20.0 |
20.0 |
20.0 |
20.0 |
19.9 |
19.0 |
17.9 |
17.3 |
16.8 |
*Temp.: metal temperature, °F, not exceeding. *DSI: design stress intensity of A420 Gr. WPL6, ksi.
6. Tensile Strength at Elevated Temperatures
| *Temp. |
-20~100 |
200 |
300 |
400 |
500 |
600 |
650 |
| *TS |
60.0 |
60.0 |
60.0 |
60.0 |
60.0 |
60.0 |
60.0 |
| *Temp. |
700 |
750 |
800 |
850 |
900 |
950 |
1000 |
| *TS |
60.0 |
59.3 |
55.1 |
50.2 |
44.8 |
39.4 |
34.6 |
*Temp.: metal temperature, °F, not exceeding. *TS: tensile strength of ASTM A420 WPL6, ksi.
7. Yield Strength at Elevated Temperatures
| *Temp. |
-20~100 |
150 |
200 |
250 |
300 |
400 |
500 |
600 |
| *YS |
35.0 |
32.9 |
32.1 |
31.5 |
31.0 |
22.9 |
28.5 |
26.8 |
| *Temp. |
650 |
700 |
750 |
800 |
850 |
900 |
950 |
1000 |
| *YS |
25.9 |
25.1 |
24.2 |
23.5 |
22.8 |
22.1 |
21.5 |
20.8 |
*Temp.: metal temperature, °F, not exceeding. *YS: yield strength of ASTM A420 WPL6, ksi.
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